Hydraulic wing control



Oct. 3, 1950 w. B. RICHARDSON HYDRAULIC WING CONTROL Filed Feb. 7, 1949 4 Sheets- Sheet 2 NN uw@ W. B. RICHARDSON HYDRAULIC WING CONTROL Oct.' 3, 1950 Filed Feb. 7, 1949 OC- 3, 1950 w. B. RICHARDSON HYDRAULIC WING CONTROL Filed Feb. 7, 1949 4 Sheefcs-Sheet 3 Qct. 3, 1950 w; RICHARDSON 2,524,329

'HYDRAULIC WING CONTROL FiledFeb. 7, 1949 4 Sheets-Sheet 4 Wfz'c kenian u Patented Oct. 3, 1950 UNITED STATES PATENT OFFICE 2,524,329 HYDRAULIC WING CONTROL Walter B. Richardson, Briagton, Maine Application February 7, 1949, Serial No. 74,980

My invention relates to a hydraulic wing control adapted for use in connection with snow plows, bulldozers, rams, floor cranes, loaders for trucks, vans and the like.

An object of the invention is to provide a wing control and lift of the class described for right or left hand duty whereby the wing or other element may be lifted or swung to either side, or tripped or tilted in or out by hydraulic means, ram, lift or elevator.

Another object is to provide a wing control construction by which the wing, blade or other element to be raised or lowered, is connected to lifting means, preferably hydraulic, at both the top and bottom so as to increase the efficiency in lifting and reduce friction, which permits the same to be tilted or tripped in or out at the top or bottom to change the angle of inclination of the actuated part, wing or blade, and in which the wing is also so constructed and mounted as to swing laterally in a horizontal plane or incline on a vertical axis, the apparatus including upright or vertical guide rails, posts or standards and a slide movable vertically thereon.. The device also includes upper and lower arms simultaneously actuated by hydraulic means at the post and slide to raise or lower the same and wing, blade or other element carried thereby, and the upper arm has separate means between it and the slide whereby the wing or blade may be independently raised or lifted from the top irrespective of the position of the slide on the vertical guide post whereby the angular position, `incline or relation of the wing or the like, may be altered at will forwardly or backwardly.

A further object is to provide a hydraulic wing control for snow plows, road graders or Scrapers, bulldozers or the like, in which there is provided a frame on the front of a motor vehicle or truck supporting a central plow or blades set in angular relation and outer wings or blades set and movable in angular relation thereto and extending outwardly from behind the outer end or ends of the plow or blades thereof, each wing being supported by an upper lifting arm and a lower brace and attached to a slide movable up or down on a vertical post by means of a hydraulic lift or ram. A hydraulic lift is also provided between each slide and arm to raise or lower the wing with the slide raised or lowered and the wing raised at the outer or back end, or bodily, the front end being carried on a wing post behind the outer end of the plow. The means for raising the wing also includes cables connected to the wing post, wing and slide to fold or extend the wings upon actuation of the slide to raised or lowered-position, all supported by and bracedto the frame.

5 Claims. (C1. 37-44) A still further object is to provide a slide movable vertically on an upright or vertical guide post or rail with a vertically elongated pivot carried by and movable with the slide, and pivotally `supporting upper and lower vertically swingable nected pivotally as to be tripped or tilted at the desired angle of inclination forwardly or rearwardly at the top to take and discharge the load `or material advanced by the plow and discharged onto the wings.

l To theforegoing objects, and others which may hereinafter more fully appear, the invention condrawings, but it is to be understood that changes,

\ variations, and modifications may be resorted to which fall within the scope of the invention as claimed.

- In the drawings:

Figure 1 is a vertical section of the hydraulic wing control constituting the invention, taken substantially on the line I-I of Figure `3, and showing certain additional features of construc- Figure 2 is an enlarged detail sectional elevation showingthe connection between a lower wing on the lines 3--3, and 4-4 of Figure l; and 5--5 of Figure 4, respectively.

- Figure 6 is a side elevation, partly broken away. of the device applied to a plow equipped truck.V

Figure '7 is a somewhat diagrammatic view of the cable means for moving the wings in and out i with the raising and lowering of the slide mounting a wing.

Figure 8 is a detailed sectional elevation. show- ,ing the mounting of a wing and cable on .a wing at the inner end of a lower wing brace or arm.

soa

`Figure 10 is a detail of the connection of the lower `brace arm to the base of the vertical guide post and mounting of the cable thereon.

Figure 1l is a detail cross section of a wing supporting and bracing arm.

Referring to the drawings, while the invention p l is capable of many applications and is adaptable Vtdrnany vehicles or industrial machines such` as snow plow equipped trucks, bulldozers, rams, Scrapers, floor cranes, loaders for trucks, vans and the like, it is shown applied to a snow plow equipped truck represented generally at i9 having the usual frame or chassis ll, front steering wheels l2, hood i3 over the engine, cab I4 and body l5. A supporting and bracing frame I6 is provided over the front of the vehicle upon the frame or chassis thereof so as to extend over the hood and cab, and comprises horizontal top side rails I1 supported on the upper ends of upright frame members I3 at the front of the vehicle on each side, and upon which headlights I9 may be mounted due to the usual headlights being precluded from view and rendered inoperative by the plow equipment at the front.

At the sides between the cab and the body are upright guide rails or posts which may be connected by a top cross member 2! in rear of the cab i4 and top thereof in front of the body l5 and between the same. The upright guide rails or posts f2@ are supported in vertical position upon a base plate 22 having spaced parallel upstanding longitudinal bearing plates 23 with a series of aligned holes 2d to receive a pivot or bolt 25 which is engaged through an apertured lug or boss 23 at the lower end of a cylinder 21 of a hydraulic lift or elevator 2B. A piston 29 operates in the cylinder 21 and its piston rod 39 extends upwardly through the head or cap 3l at the top of the cylinder. Each upright guide rail or vertical post 23 comprises a V-bar 32 secured at its edges by welding or otherwise to the rear face of a flat vertical front bar 33 disposed transversely widthwise and having its opposite edges projecting beyond the sides of the V-bar 32 to :form tracks on which upper and lower slides 3d and 35 are mounted to move vertically. These slides are in the form of grooved members to slidably engage the projecting vertical edges of the bars 33 and as shown, are made up of flat plates 35 disposed against the front of the bars 33 and projecting outwardly thereof to slide thereagainst and are connected or bolted as indicated at 31 through a front connecting bar 33 between the upper and lower slides and Vextending in inclined position at the top as indicated at 39, the slides being channeled or U- shaped.

The plates 35 project outwardly of the side Aedges of the bars 33 and narrow spacing bars 49 are disposed against the vertical side edges ofthe bars 33 and receive the fastening means 31 which are also extended through narrow plates 4l at the back overlying the side margins of the rear faces of the bars 33, so as to slide on the latter. The upper plates il extend above the upper slide 34 or top edges of the parts 33 and 4D and may be connected transversely and to the upper ends of the rearwardly inclined portions 39 to mount apertured lugs l2 through which connection is made at d3 with the upper ends of the piston rods 3E) so that the hydraulic pressure admitted to the cylinders 21 against the pistons 29 will raise the piston rods 39 to simultaneously actuate the slides 3d and 35. Fluid pressure may be admitted to the cylinder from a suitable source through a line dil. Anti-friction members or rollers 45 are mounted in bearings 46 on the bars 38 to engage the front and rear faces of the bars 33 of the guide rails 2G.

At the front of the lower slide 35, vertically spaced horizontal pivot lugs l1 are provided toward the outside and the upper slide 34 is provided with similar pivot lugs 48 toward the inside and these lugs are connected by vertical tubular members 9 adapted to receive elongated vertical pivot ping 50 preferably having heads 5| at the top to rest upon the upper pivot lugs 48 and retained in position below the bottom pivot lugs 41 as by a pin 52. Upper and lower vertical pivot ears 53 and 54 are xed to the tube ld near its upper and lower ends, so that the pin 59 constitutes a vertical pivot axis on which the ears 53 and 54 may swing in horizontal planes while the lugs 4l and 43 are rigid with the vertically movable carrier formed by the connected slides 34 and 35.

Elongated spaced plates or lugs 55 are pivoted at their rear ends horizontally at 53 through the ears 53 to swing vertically and extend forwardly therefrom. Plates 55 are provided with a plurality of opposed spaced holes 51 for adjustable connection at 58 with the upper end oi a piston rod 5S of a hydraulic ram or lift Y(il) similar in construction to the lift 23 and having its piston 6I operating in the cylinder 52 and its piston rod 59 operating through the head or cap 53 at the top of the cylinder which is disposed in a rearwardly inclined position from its connection 58 and provided with a pivot lug Bil at its lower end pivote-d transversely and horizontally at S5 to the ears 55, at the bottom. Fluid under pressure may be supplied to the cylinder E32 from a suitable source which supplies the cylinder 2l, through a line 5S connected with a reservoir or pump on the truck in the customary manner of supplying fluid pressure in connection with such devices and in connection with tractors. The forward end portions oi the plates 55 are welded at the upper edges of an extensible upper arm 51 through the medium of an outer tube section 69 from which the plates or lugs 55 depend.

The arm 61 comprises an extensible construction including the tubular member 33 and an inner tubular member 39 ntting and telesccping therein and capable of adjustment or extension and retraction relative thereto to vary the length of the arm as by means of a bolt 18 engageable through any pair of a plurality oi opposed holes 1| in the respective tubular sections or meinbers B3 Yand 39. A pin or plug l2 is welded or otherwise xed in the outer end of the tubular member B9 and has depending pivot ears 13 to which the upper end of a link 'id is pivoted at 15 and the lower end of the link is pivoted at 19 to pivot ears of a bracket 11 swiveled at its depending shank 18 through a channel member 19 and retained in connection by a nut The channel member 1'9 is provided at the upper edge of a wing 8l near the outer end of the latter and beneath this pivotal connection, the wing 8l or rear bracing frame thereof is provided with vertically spaced and aligned apertured ears 32 ior pivotal connection by means of a vertical pivot bolt 83 through a vertical tubular pivot connection 84 horizontally pivoted at the back as indicated at 85 to vertical pivot lugs S6 formed at the forward end of a plug, pin or cap 3l on the forward end of an inner tubular member 33 constituting a telescoping and extensible section of a lower brace and swing supporting arm '39. This arm includes an outer tubular member or section S9 on which the section 88 is telescopically fitted and has its inner end provided with vertical pivot lugs 9| connected by a horizontal pivot bolt 92 to a vertical tubular pivot member 94 pivotally mounted on a, pivot bolt 95 through the pivot lugs 41 t0 which the lower end of the pivot 95.

' tube 9 is attached, and horizontal pivot lugs 96 therebeneath, so that the arm 89 can swing vertically on the pivot 92 and horizontally on the A similar series of opposed registering holes 91 are provided in the tubular sections 88 and 90 to receive a bolt 98 for adjusting the length of the arm 89. At its bottom edge, the wing 8| is provided with an angle bar 99 to which a scraper blade lili) is bolted at l l. i

'I'he wings 8i extend outwardly from a central forwardly tapered plow |02, the blades |03 of which diverge rearwardly above its bottom scraping or cutting edge or blade |94 similar to the blade |00 and bolted to the plow blades asVH indicated at |85. The plow |02 is suitably attached and braced to the frame I6 at the front, as indicated at |06 and |01 at the top and bottom, respectively, and the latter brace carries a vertical tubular socket |08 in which a vertical wing post |09 is mounted as shown in Figures 6 and 8 of the drawings, suitable bracing structure ||0 being provided between the socket |08 and the plow E02 as shown. The post |09 is rigidly secured at its upper and lower ends and the tubular socket or sleeve |08 is adapted to slide vertically thereon, being attached to the Wing 8| as by a horizontal pivot of the brace structure H0 and vertical pivot la to swing vertically and horizontally, so that the wings may be raised and lowered with respect to and independently of the central plow with the wings extending outwardly and rearwardly from each side of the plow.

The base plates 22 are connected transversely and to the body as by a suitable bracing structure l2 to give support to the vertical guide rails or posts 20 on which the rear outer ends of the wings may move up and down at the slides by actuation of the hydraulic lifts 28 while the lifts 60 are designed to be actuated for independently swinging the upper arms 10 up or down, to trip or tilt the wings 8| through the link connections 14 therewith so that the wings may be tilted forwardly or rearwardly at the desired angle. depending upon the load and the control of the advancement and discharge thereof.

In order to raise or lower the wings by the action of raising or lowering the slides and arms at the rear ends thereof through which connection is made to the outer ends of the wings, cables H3 are anchored to hooks ||4 of the carriage formed by the slides 34 and 35 and extend around guide sheaves or pulleys ||5 mounted therebeneath upon the base plates 22 or bracing structure |I2 as shown particularly in Figure 6 of the drawings. The cables then extend over guide sheaves or pulleys ||6 carried by and depending from the inner ends of the lower arms 89 and then outwardly or through the end along the arms 89 and around horizontal guide sheaves or pulleys H1 carried by the outer ends of the arms 89 and then around vertical guide sheaves or pulleys i8 fixed to the bracing structure |01 or lower ends of the wing posts |09. From this point, the cables are extended upwardly and anchored to the upper ends of the wing posts |09 as through the medium of chain sections ||9 adjustably engageable over hooks carried by the upper ends of the posts, so as to vary the lengths of the cables H3. In this way, it will be seen that operation of the hydraulic lifts 28 will cause the carriage or slides to be elevated on the guide rails 29 to raise the rear and outer ends of the wings or to permit the same to be lowered by releasing the pressure, and this may be employed when using the cables I' I3 when connected to the hooks |20, to bodily .raise the wings 8| at both ends. However, when the cables are not in use, the wings may be elevated at the rear and outer ends thereof in forwardly irr-l clined positions from the front, the degree of extension depending upon the adjustment of the' lengths of the upper and lower arms 61 and 89, respectively. Also, by operation of the lifts or rams 60, the upper arms 61 may be raised to position the links 14 vertically and dispose the wings 8| vertically or tripped and tilted at different angles forwardly or rearwardly inclined or vertically at the will of the operator.

It is of course to be understood that the hydraulic lifts 28 and 60 are to be controlled from a suitable valve in the cab or otherwise, so as to be actuated conveniently by the driver when desired. Adjustment of the lengths of the arms 61 and 89 will also determine the relative angular positions and extensions of the wings 8| outwardly, the height thereof being also controlled by the positions of the carriages or slides on the guide rails 20 in connection with the lengths of the eX- tensible or telescopic arms 61 and 89. The action of the rams or lifts 60 may also be varied by adjustment of the upper outer ends thereof in the series of holes 51 and this will be determined somewhat by the lengths of the upper arms 61. When the wings are elevated at the front and back by raising the carriage or slides upon the guide rails 20 through the medium of the lifts 28, assisted by the rams or lifts 00, free ingress and egress is had with respect to the cab I4.

The width of the vehicle is reduced when the wings are not in use, or in travelling along a road from place to place so that only the width of the vehicle and plow |02 need be accommodated, as this determines the gauge of the vehicle. When the wings are lowered, they may be tilted rearwardly by raising the arms 61 or shortening them, and may be disposed vertically or tilted forwardly by extending said arms or raising and lowering the same by means of the lifts 60, so that the wings may be adjusted in different positions according to the work to be done. In addition, the wings may be raised at the back and folded in while lowered at the front, in addition to being folded in when raised both at the front and back or inner and outer ends thereof, as previously described, by employing the hydraulic lifts 28 and the cables 3 for lifting the outer and inner ends thereof simultaneously in the manner previously set forth. Thus, it will be seen that I have provided a hydraulic wing control adaptable to various vehicles, tractors or industrial machines including trucks as illustrated in the embodiment shown, and that the device may be readily mounted or demounted as desired for use, or when the use thereof is not desired or necessary.

I claim:

1. In a wing control of the kind described for a wing associated with a main plow blade, a vertical guide post, a slide movable up and down thereon, hydraulic means for raising and lowering the slide, arms pivoted to the slide for vertical and horizontal swinging movements. a hydraulic lift between the slide and upper arm, and a wing carried by said arms mounted at one end to swing vertically and horizontally relative to said main plow blade, said wing pivoted at the top and bottom to the free ends of the arms, the pivot connection of the upper arm to the top of the wing including a link pivoted to both, whereby upward pressure on the upper arm by the hydraulic lift between the slide and arm will trip the wing to a forwardly angled position at the top.

2. In a wing control of the kind described for a wing associated with a main plow'blade, a vertical guide post, a slide movable up and 'down thereon, hydraulic means for raising and lowering the slide, arms pivoted to the slide for Vertical and horizontal movements, a hydraulic lift between the slide and upper arm, and a wing carried by said arms mounted at oney end to swing vertically and horizontally relative tothe main plow blade, said wing pivoted at'the top and bottom to the ree ends of the arms to tilt forwardly or rearwardly, said wing adapted to fold in and out with the swing-ing of the arms.

3. In a wing control of the kind described for a wing associated with a main plow blade, a pair of vertical guide posts, a slide movable up and vdown on each post, hydraulic means for raising and lowering each slide, arms pivoted to each slide for vertical and horizontal swinging movements relative to the main plow blade, a hydraulic lift between each slide and upper arm, wings carried by said arms mounted at one end to extend outwardly and move up and down at their inner and outer ends, and cable means anchored to one guide post Vat one end and moi/ably connected to the lower arm and inner end of each wing, and anchored at its other end to the other of said guide posts to raise and lower the Wings upon raising and lowering the slides.

4. In a wing control for plows, a plow, a wing post' at one side of the plow, a wing pivoted for horizontal and vertical movement and adapted to therebeneath, to raise or lower the upper arm independently of the lower arm.

5. The combination with a vehicle, a frame mounted on the vehicle, a plow centrally supported on the frame at the front of the vehicle, vertical wing posts at the ends of the plow, wings mounted to slide vertically on the posts and adapted to pivot horizontally and vertically, means for raising and lowering the wings on the posts and for swinging them in and out, vertical guide bars mounted at the sides of the vehicle, slides movable up and down on said guides, hydraulic means supported at the bases of Vthe guides and connected to the slides for raising and lowering the same, upper and lower extensible arms connected to the slides for vertical and lateral swinging movement, hydraulic means between the lowerportions of the slides and the inner portions of the upper arms to raise and lower the latter independently of the lower arms and the slides, links connecting the upper arms to the wings at the top to tilt the wings upon actuation of the latter hydraulic means, and cable means connected to the posts and slides and movably associated with the lower arms and wings to raise the wings bodily, said wings upon movement of slide up and down on the post, an upright guide in rear of one end of the plow, a carriage slidable vertically thereon, hydraulic means for raising the carriage, upper and lower arms pivoted to the carriage and to the wing to swing vertically and laterally, the connection of the upper arm to the wing including a swivel and a pivoted link to permit the wing to be disposed vertically or inclined forwardly or rearwardly, and a hydraulic lift between the upper arm and the carriage the slides adapted to be raised at their outer end and in either position to be folded in or extended outwardly.

WALTER B. RICHARDSON.

REFERENCES CIT ED The following references are of Vrecor'd'i'ri the le of this patent:

UNITED STATES PATENTS Number Name Date 1,624,839 Lombard Apr. 12, 1927 1,791,942 Symonds Feb. l0, 1931 1,853,939 Seule et al. Apr. l2, 1932 '1,956,007 Davin etal. Apr. 24, 1934 2,095,096 Humphrey Oct. 5, 1937 2,144,698 Allan Jan. 24, 1939 2,193,532 Frink Mar. 12, 1940 

